Opportunities to Enhance the Pyrolysis of Biomass in The Production of Hydroxyapatite and Chemicals

The pyrolysis of calcium orthophosphates produces hydroxyapatite and chemicals. Additionally, pyrolysis proposes paths to manage animalderived waste streams. As it happens in the pyrolysis of lignocellulosic biomass, operating variables like reactor temperature, reaction atmosphere, feedstock, and particle size affect the final product from animal-biomass. This review summarizes the characteristics of multiple pyrolysis methods to produce hydroxyapatite and chemicals. Finally, this short paper recommends opportunities to enhance the results by changing pyrolysis process variables, learning from lignocellulosic and animal-derived biomass experiences alike.